Except, creationism is part of a specific religion(Christianity) and requiring a teaching of that would violate the establishment clause if one believed it applied to the states with regards to the 14th amendment. If one believed that none of the 14th amendment forced the states to follow the BoR or the establishment clause, then it is valid to argue for creationism schools. However overall this decision was not an extreme overreach by the Warren court .
However I do believe SCOTUS has gone too strictly on certain school prayer cases, as long as there was an option to meditate in a secular manner at the same time, school prayer should have been allowed as a short period of time set aside, and I say this as a person who is non-religious.
I mean that's
fair, but it doesn't change the fact that both prayer and meditation are enormous wastes of time. Grades are low enough already without us taking another 15 minutes out of the day for another BS activity like this.